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Feb 2, 2012

Risk Level 1: Very Low

Backdoor.Whalfrost is a Trojan horse that opens a back door on the compromised computer. It may also download more files and steal information from the compromised computer.

The threat Backdoor.Whalfrost was discovered by Symantec Security Response Threat Severity Assessment on February 1, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on February 1, 2012 revision 035. It should be noted that users with the older versions of Norton Internet Security are limited to Daily LiveUpdate definitions. For more information, go to the page where the are described virus definitions available for Norton products.

Backdoor.Whalfrost Threat Assessment
Wild LevelLow
Number of Infections0 - 49
Number of Sites0 - 2
Geographical DistributionLow
Threat ContainmentEasy
Damage LevelMedium
Distribution LevelLow

According to the Symantec Threat Severity Assessment, overall risk of Backdoor.Whalfrost is now categorized as «Very Low» — poses little threat to users; rarely even makes headlines; no reports in the wild. Read more about Threat Severity Assessment.

This threat affect the following operating systems:
  • Windows 98
  • Windows 95
  • Windows XP
  • Windows Me
  • Windows Vista
  • Windows NT
  • Windows Server 2003
  • Windows 2000

More information about Backdoor.Whalfrost, you can find on the official site of Symantec Corporation, where in addition to useful information you can find technical details and removal instructions:

It is also recommended to read the article Network security threats, where you can find a brief description and explanation of the most dangerous security threats plus a few simple tips on how to protect your personal computer from them.

2 comments: (+add yours?)

» Anonymous said...

I would like to know why you charged a Norton Annual Renewal to my Visa Account without my authorization. I have tried to call but the message is the number I am calling is out of my area. How do I get in touch so this can be corrected. I live in Ajax, Ontario Canada

» Admin said...

Please, follow this link to read a topic on Norton Users Discussion Forum similar to your question. Also, you can try to find a solution to your problem on page Norton Annual Renewal Support

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